Central banks face test: Will they be good cops or bond villains?
TLT•A global bond selloff is sharpening tensions between central banks and governments over whether monetary authorities should resume buying sovereign debt. G7 central-bank balance sheets have shrunk by about one-third since early 2022, while G7 government debt has nearly trebled to more than $60 trillion and annual interest expenses are 85% higher than in 2008.
1. Pressure to intervene
Central banks are reluctant to rebuild their sovereign-debt holdings, but continued bond-market pressure could increase political demands for support. International Monetary Fund head Kristalina Georgieva urged rich governments to adopt credible fiscal-consolidation plans, warning against relying on central banks to bail them out.
2. Debt costs rise
The Institute of International Finance estimates that G7 government debt has nearly trebled to more than $60 trillion, leaving annual interest expenses 85% higher even though average borrowing costs are back at mid-2008 levels. Advanced economies collectively pay more than $3.3 trillion a year to service bonds. Since early 2022, G7 central-bank balance sheets have fallen by about one-third, alongside a 40% decline in long-term G7 government bond indexes and a four-percentage-point rise in their implied borrowing rate.
3. Shifting bond-market risks
The column says reduced central-bank and pension-fund demand has left more sovereign debt in the hands of hedge funds and other short-term investors, increasing market sensitivity to price shifts and interest-rate changes. Fed economist Phillip Monin estimates hedge-fund demand for cash-futures arbitrage has increased fourfold since 2020 and now represents 3.5% of outstanding Treasury supply.
